7.4--7.6

Question 1

The place where bones join

Answer 1

joint

Question 2

join bones rigidly together

Answer 2

Immovable joints

Question 3

make some bending and twisting motions possible

Answer 3

Slightly movable joints

Question 4

allow a wide range of motion

Answer 4

Freely movable joints

Question 5

connect two bones together

Answer 5

ligaments

Question 6

allows a bone to move back and forth in a single plane

Answer 6

Hinge

Question 6

clear, water-based lubricant

Answer 6

Synovial fluid

Question 7

serves as a container for the synovial fluid; formed by ligaments in enclosure

Answer 7

joint capsule

Question 8

allows only rotational movement

Answer 8

Pivot joint

Question 8

The most freely movable joints in the body

Answer 8

Ball and socket

Question 9

allow you to move your fingers up, down, left, and right

Answer 9

Ellipsoid

Question 10

when one bone slides across the surface of another; one of the simplest types of joints;

Answer 10

Gliding

Question 11

a saddle-shaped portion of one bone nestles into a saddle-shaped portion of another bone

Answer 11

saddle joint

Question 12

any inflammation of the joints

Answer 12

Arthritis

Question 13

Arthritis that comes because cartilage wears out over time(age)

Answer 13

Osteoartritis

Question 14

Arthritis that comes from disease

Answer 14

Rheumatoid arthritis

Question 15

when the ligaments have been overstressed

Answer 15

Sprain

Question 16

where two bones are supposed to be joined together but one of them separates

Answer 16

Dislocation

Question 17

the ligaments that hold together the joints get torn apart

Answer 17

Torn ligament

Question 18

muscles that you control

Answer 18

Voluntary muscles

Question 19

muscles you have no control over

Answer 19

Involuntary muscles

Question 20

muscle with striped appearance

Answer 20

Skeletal muscle tissue

Question 21

muscle with looser arrangement

Answer 21

Smooth muscle tissue

Question 22

similar in structure to skeletal muscle; is specially designed to contract over and over without tiring

Answer 22

Cardiac muscle tissue

Question 23

responsible for moving the head

Answer 23

Sternocleidomastoid

Question 24

function to close the jaw

Answer 24

Temporalis and Masseter

Question 25

permit you to pull your shoulders back or to shrug

Answer 25

Trapezius

Question 26

found between the ribs and helps expand ribcage when breathing in

Answer 26

Intercostal muscles

Question 27

lift the upper arms away from the body

Answer 27

Deltoid

Question 28

responsible for drawing your arms to the rear

Answer 28

Latissimus Dorsi

Question 29

pulls in arm

Answer 29

Biceps brachii

Question 30

extends arm

Answer 30

Triceps brachii

Question 31

special tunnels in the wrist

Answer 31

Carpal tunnel

Question 32

you use these muscles whenever you sit up from a reclining position

Answer 32

Rectus abdominis

Question 33

vital to proper posture and giving birth

Answer 33

External oblique

Question 34

allow you to hold your body upright

Answer 34

Erector spinae

Question 35

strongest muscle in the body

Answer 35

Gluteus maximus

Question 36

extends your knee

Answer 36

Quadriceps femoris

Question 37

bends the leg

Answer 37

Hamstrings

Question 38

lifts the lower leg and turns it inward

Answer 38

Sartorius

Question 39

extend the foot downward by pulling up on the heel; largest muscle of the calf

Answer 39

Gastrocnemius

Question 40

binds the muscle together

Answer 40

Fascia

Question 41

individual muscle cells

Answer 41

Muscle fibers

Question 42

extend the length of the muscle cell

Answer 42

Myofibrils

Question 43

give skeletal muscle its banded, or striated, appearance

Answer 43

Sarcomeres

Question 44

tell muscles when to retract; in charge of motor function

Answer 44

Motor neurons

Question 45

where a nerve cell and muscle join

Answer 45

neuromuscular junction

Question 46

special chemical

Answer 46

Neurotransmitter

Question 47

motor neuron and the group in controls

Answer 47

Motor unit

Question 48

When a muscle fiber is stimulated to contract, it does so completely and then relaxes completely until another nerve impulse reaches it

Answer 48

All-or-none principle

Question 49

Where muscles grow larger

Answer 49

Hypertrophy

Question 50

Degradation of the muscles

Answer 50

Atrophy

Question 51

muscle fibers that contain many mitochondria and large amounts of myoglobin

Answer 51

Red fibers

Question 52

muscle fibers containing fewer mitochondria and less myoglobin

Answer 52

White fibers

Question 53

total awareness of body movements

Answer 53

Muscle sense